RubyMotion is a toolchain that allows developers to use Ruby to build iOS applications. It works by compiling Ruby code to Objective-C and allowing it to run natively on iOS, providing access to the full iOS SDK. It aims to provide a simpler and more productive development workflow compared to Objective-C, while allowing apps to be fully compatible with the App Store. The document outlines RubyMotion's implementation, workflow, community resources and limitations.

1. RUBYMOTION
RUBY FOR iOS
Rui Miguel Santos
18 February 2014
DEPLOYING YOUR DREAMS

2. RUBYMOTION
A RUBY TOOLCHAIN FOR DEVELOPING IOS APPLICATIONS
PAGE 2

3. ABOUT
- Laurent Sansonetti
- Released by HipByte in
May 2012
- MacRuby port for iOS
- Fully compiled
- 100% App Store compliant
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4. WHY BOTHER?
- Ruby
- No code interpretation (fully
compiled)
- IDE agnostic
- Terminal-based workflow
- REPL
- Testing
PAGE 4

5. IMPLEMENTATION
iOS SDK
Foundation Framework
Objective-C Runtime
Objective-C
PAGE 5

6. IMPLEMENTATION
iOS SDK
Foundation Framework
Objective-C Runtime
RubyMotion
Objective-C
PAGE 6

7. WORKFLOW
- Terminal based
- rake
- Keep your editor
- RubyMine support
- Testing framework
- Deploy
- Testflight support
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8. WORKFLOW
> motion create meetupDemo
Create meetupDemo
Create meetupDemo/.gitignore
Create meetupDemo/app/app_delegate.rb
Create meetupDemo/Gemfile
Create meetupDemo/Rakefile
Create meetupDemo/resources/Default-568h@2x.png
Create meetupDemo/spec/main_spec.rb
Code
away…
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9. WORKFLOW
> rake
Build ./build/iPhoneSimulator-7.0-Development
Compile ./app/app_delegate.rb
Create ./build/iPhoneSimulator-7.0-Development/meetupDemo.app
Link ./build/iPhoneSimulator-7.0-Development/meetupDemo.app/meetupDemo
Create ./build/iPhoneSimulator-7.0-Development/meetupDemo.app/PkgInfo
Create ./build/iPhoneSimulator-7.0-Development/meetupDemo.app/Info.plist
Copy ./resources/Default-568h@2x.png
Create ./build/iPhoneSimulator-7.0-Development/meetupDemo.dSYM
Simulate ./build/iPhoneSimulator-7.0-Development/meetupDemo.app
(main)>
Deploy!
> rake testflight notes=”Ready to distribute!"
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10. LEARN BY TRANSLATING
PAGE 10

11. REPL
- Tab completion (irb-like)
- Interactive development
- ⌘ + click to change context (self)
- Traverse view hierarchy
- Modify objects in runtime
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12. RUBYMOTION != MRI
-
No require
No eval
No Proc#binding
Named parameters
Regular gems need to be
modified
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13. COMMUNITY
- RubyMotion wrappers
- DSLs
-
BubbleWrap
Sugarcube
Teacup
ProMotion
…
- CocoaPods
- Dedicated conference
- #inspect 2014
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14. TESTING
-
MacBacon (RSpec)
Frank (Cucumber)
Facon (motion-facon)
Symbiote
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15. DOWNSIDES
- Not free (150€)
- Lack of static checks in
compile time
- Debugging
- Hard to access low level
layers
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16. RESOURCES
-
Official website
-
-
RubyMotion Tutorial
-
-
github.com/HipByte
RubyMotion Wrappers
-
-
groups.google.com/forum/#!forum/rubymotion
GitHub repositories
-
-
rubymotion-tutorial.com
Google Groups
-
-
rubymotion.com
rubymotion-wrappers.com
Screencasts
-
motioninmotion.tv
motioncasts.tv
pragmaticstudio.com/screencasts/rubymotion
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17. Imaginarycloud.com
info@imaginarycloud.com
+351 218 053 896
Rua Serpa Pinto, nº 14A, 3º andar
1200-445 Lisboa, Portugal